Hydraulic machine for plate stretching machining

Abstract

The utility model discloses a hydraulic machine for plate stretching processing, and relates to the technical field of hydraulic machines, the hydraulic machine for plate stretching processing comprises a working table, supporting columns and an upper cross beam, the four corners of the top of the working table are fixedly connected with the supporting columns, and the upper cross beam is located at the tops of the supporting columns; the hydraulic machine for plate stretching machining is provided with a spraying structure, and the hydraulic machine for plate stretching machining is provided with a unique spraying structure. When the upper mold plate is pressed downwards until a spring A is in contact with the top of a flow guide through hole, the upper mold plate slides in a limiting groove until the flow guide through hole is communicated with the interior of a spraying opening, at the moment, liquid in a sliding pipe is evenly sprayed out through the spraying opening, by means of distribution of a plurality of spraying structures, the periphery of the lower mold plate is completely covered, and the dead-corner-free spraying effect is guaranteed; clear water can also be fed into the connecting valve so as to clean the mold.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a hydraulic press for plate stretching processing. Background Art

[0002] Hydraulic presses play an important role in industrial manufacturing, especially in the fields of stamping, injection molding, stretching, etc. The reciprocating linear motion of the working mechanism is achieved by transmitting pressure through liquid. This efficient and stable movement mode makes hydraulic presses an indispensable equipment on many production lines.

[0003] For example, a stamping hydraulic press for sheet metal stretching with publication number CN216911702U includes a hydraulic press frame, which includes a workbench, columns fixed at the four corners of the workbench, an upper crossbeam fixedly connected to the workbench through the columns, and also includes guide rails, sliders, a mobile workbench, a main cylinder, a side main cylinder, an ejection cylinder, a side ejection cylinder, a safety bolt, and a lifting and clamping cylinder. T-shaped grooves for fixing molds are provided on the facing surfaces of the slider and the mobile workbench, and S-shaped cooling pipes are provided in the slider and the mobile workbench. The stamping hydraulic press of the utility model includes a hydraulic press frame, which is composed of a workbench, columns and an upper crossbeam, which increases the overall stability of the hydraulic press and reduces the vibration of the hydraulic press;

[0004] The stamping hydraulic press in the above-mentioned comparative document includes a hydraulic press frame, which is composed of a workbench, columns and an upper crossbeam, increasing the overall stability of the hydraulic press and reducing the vibration of the hydraulic press. Under the current technical background, when a stretching hydraulic press processes heterogeneous materials, in order to maintain the steady state of the processing flow, it is necessary to take necessary measures such as covering with a film or spraying chemicals to prevent potential chemical reactions between the material and the mold, thereby protecting the mold from damage. Utility Model Content

[0005] The purpose of the utility model is to provide a hydraulic press for plate stretching processing, so as to solve the problem in the above-mentioned background technology that under the current technical background, when the stretching hydraulic press processes heterogeneous materials, in order to maintain the stability of the processing flow, it is necessary to take necessary measures such as covering film or spraying chemicals to prevent potential chemical reactions between the material and the mold, thereby protecting the mold from damage.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A hydraulic press for plate stretching processing, comprising a workbench, a support column and an upper crossbeam, wherein the four corners of the top of the workbench are fixedly connected with support columns, and the upper crossbeam is located on the tops of a plurality of support columns, and the plurality of support columns are distributed at the four corners of the bottom of the upper crossbeam;

[0007] A hydraulic rod is fixedly connected to the interior of the upper crossbeam, and the hydraulic rod runs through the interior of the upper crossbeam. The lower end of the hydraulic rod is fixedly connected to the upper template, and the four corners of the upper template are provided with openings, and the openings are slidably connected to the outside of the support column. The top of the workbench is slidably connected to the lower template, and the top of the lower template and the interior of the upper template coincide with each other. A water spray structure is provided inside the workbench, and the water spray structure is provided with a storage rod. A sliding tube is slidably connected to the interior of the storage rod, and a spring A is provided on the outside of the sliding tube. A guide tube is provided inside the spring A, and the guide tube is slidably connected to The sliding tube is provided with a connecting valve at the lower end of the guide tube, a limiting groove is provided at the top of the sliding tube, and a guide block is slidably connected inside the limiting groove, and a guide flow hole is provided inside the guide block, a sealing tube is fixedly connected to the bottom of the guide block, and a spring B is provided on the outside of the sealing tube, and the spring B is located between the sliding tube and the outside of the sealing tube, and the spring B is slidably connected to the inside of the sliding tube, a spray port is provided on one side of the top of the sliding tube, and the inside of the spray port is communicated with the inside of the guide flow hole, a pressing rod is slidably connected inside the limiting groove, and the pressing rod is located at the top of the guide block;

[0008] A coating structure for protecting the lower template is provided on one side of the workbench.

[0009] Furthermore, the workbench is provided with mounting holes inside, and a plurality of mounting holes are provided and centrally symmetrically distributed inside the sliding tube, and fixing holes are provided at the bottoms of the plurality of mounting holes.

[0010] Furthermore, the interior of the installation hole and the interior of the fixing hole are fixedly connected to the storage rod and the connecting valve respectively.

[0011] Furthermore, a plurality of positioning holes are provided inside the workbench, and the plurality of positioning holes are evenly distributed inside the workbench, and the inside of the positioning holes is slidably connected to the lower end of the lower template.

[0012] Furthermore, the coating structure is provided with a rack, a gear is meshed on the outer side of the rack, and both sides of the gear are rotatably connected to a limit plate, and a recovery roller is fixedly connected to the inside of the limit plate.

[0013] Furthermore, both ends of the recycling drum are rotatably connected to fixed blocks, and the outer side of the recycling drum is rotatably connected to a protective film, and one end of the protective film away from the recycling drum is rotatably connected to a storage drum.

[0014] Furthermore, both ends of the storage roller are rotatably connected to the fixed blocks, and multiple fixed blocks are fixedly connected to both sides of the upper template. A slot is provided inside the gear, and a limit block is engaged and connected inside the slot, and the limit block is rotatably connected to both sides of the recovery roller. At the same time, an elastic rotating shaft is provided at the connection between the limit block and the recovery roller.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The hydraulic press for plate stretching processing is provided with a spraying structure. The hydraulic press for plate stretching processing is equipped with a unique spraying structure. When the upper template is pressed down until the spring A contacts the top of the guide hole, it will slide inside the limit groove until the guide hole is connected to the inside of the spraying port. At this time, the liquid inside the sliding tube will be evenly sprayed out through the spraying port. With the help of multiple spraying structure distribution, the lower template is fully covered around to ensure a spraying effect without dead angles. In addition, clean water can also be connected to the inside of the connecting valve to clean the mold;

[0017] Furthermore, a film coating structure is provided, and the recovery drum is driven to rotate by the movement of the upper template, so that the protective film moves between the storage drum and the recovery drum, and moves synchronously at the bottom of the upper template. When the upper template and the lower template are attached, the protective film plays an isolating role, effectively avoiding potential chemical reactions between the material and the mold, thereby protecting the mold from damage;

[0018] Furthermore, a ratchet structure is formed between the card slot and the limit block, which ensures that the recovery drum can only move in the same direction when rotating, thereby realizing an automated process of recovering the protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0021] Figure 3 This is a schematic diagram of the half-section structure of the workbench of the utility model;

[0022] Figure 4 This is a schematic diagram of a half-section structure of a storage rod of the utility model;

[0023] Figure 5 For this utility model Figure 4 The enlarged structural diagram at A in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of the lower pressure rod of the utility model;

[0025] Figure 7 This is a schematic diagram of the half-section structure of the recycling drum of the utility model.

[0026] In the figure: 1. workbench; 2. support column; 3. upper crossbeam; 4. hydraulic rod; 5. upper template; 6. lower template; 7. installation hole; 8. fixing hole; 9. positioning hole; 10. storage rod; 11. sliding tube; 12. spring A; 13. guide tube; 14. connecting valve; 15. limit groove; 16. guide block; 17. guide hole; 18. sealing tube; 19. spring B; 20. spray nozzle; 21. lower pressure rod; 22. rack; 23. gear; 24. limit plate; 25. recovery roller; 26. fixing block; 27. protective film; 28. storage roller; 29. ​​slot; 30. limit block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In a further preferred embodiment of the present invention, Figure 1-Figure 5 As shown, a hydraulic rod 4 is fixedly connected to the interior of the upper crossbeam 3, and the hydraulic rod 4 runs through the interior of the upper crossbeam 3, an upper template 5 is fixedly connected to the lower end of the hydraulic rod 4, and four corners of the upper template 5 are provided with openings, and the openings are slidably connected to the outside of the support column 2, a lower template 6 is slidably connected to the top of the workbench 1, and the top of the lower template 6 coincides with the interior of the upper template 5, a water spray structure is provided inside the workbench 1, and a storage rod 10 is provided on the water spray structure, a sliding tube 11 is slidably connected to the interior of the storage rod 10, and a spring A12 is provided on the outside of the sliding tube 11, a guide tube 13 is provided inside the spring A12, and the guide tube 13 is slidably connected to the interior of the sliding tube 11, and a connecting valve 1 is provided at the lower end of the guide tube 13. 4. A limiting groove 15 is provided on the top of the sliding tube 11, and a guide block 16 is slidably connected inside the limiting groove 15, and a guide flow hole 17 is provided inside the guide block 16, a sealing tube 18 is fixedly connected to the bottom of the guide block 16, and a spring B19 is provided on the outside of the sealing tube 18, and the spring B19 is located between the sliding tube 11 and the outside of the sealing tube 18, and the spring B19 is slidably connected to the inside of the sliding tube 11, a spray port 20 is provided on one side of the top of the sliding tube 11, and the inside of the spray port 20 is communicated with the inside of the guide flow hole 17, a lower pressure rod 21 is slidably connected inside the limiting groove 15, and the lower pressure rod 21 is located on the top of the guide block 16; a coating structure for protecting the lower template 6 is provided on one side of the workbench 1;

[0029] When the device is running, the hydraulic rod 4 will drive the upper template 5 to slide between the multiple support columns 2 until the upper template 5 and the lower template 6 are fitted together, thereby completing the stretching of the material and passing the liquid into the connecting valve 14. During the downward movement of the upper template 5, the limit groove 15 will drive the lower pressure rod 21 to move downward inside the limit groove 15. At this time, the lower pressure rod 21 will drive the guide block 16 to move downward, so that the spray port 20 and the guide hole 17 are staggered, so that the outer end of the guide hole 17 forms a closed mouth to prevent the liquid inside the connecting valve 14 from spraying out. At this time, the guide block 16 will compress the spring B19 to shorten it, so that the sealing tube 18 slides to the inside of the sliding tube 11. When the upper template 5 continues to move downward, the sliding tube 11 will slide inside the storage rod 10, and the sliding tube 11 will compress the spring A12 to shrink. At the same time The guide tube 13 will slide into the sliding tube 11 to store the sliding tube 11. When the upper template 5 moves upward, the sliding tube 11 will be driven by the spring A12 to slide upward inside the storage rod 10 until the lower pressure rod 21 slides upward inside the limiting groove 15. When the lower pressure rod 21 fits with the top of the limiting groove 15, the spring B19 drives the guide block 16 to slide inside the limiting groove 15 until the top of the guide block 16 fits with the bottom of the lower pressure rod 21. At this time, a passage is formed inside the guide hole 17 and the spray port 20. The liquid inside the connecting valve 14 enters the guide tube 13 and then enters the sealing tube 18 through the sliding tube 11, and then enters the guide hole 17 from the sealing tube 18. Since a passage is formed between the guide hole 17 and the spray port 20, the liquid will be sprayed out from the spray port 20.

[0030] In a further preferred embodiment of the present invention, Figure 1-Figure 3 As shown, a mounting hole 7 is provided inside the workbench 1, and a plurality of mounting holes 7 are centrally symmetrically distributed inside the sliding tube 11, and a fixing hole 8 is provided at the bottom of each of the plurality of mounting holes 7, and the insides of the mounting holes 7 and the fixing holes 8 are respectively fixedly connected to the receiving rod 10 and the connecting valve 14, a plurality of positioning holes 9 are provided inside the workbench 1, and the plurality of positioning holes 9 are evenly distributed inside the workbench 1, and the insides of the positioning holes 9 are slidably connected to the lower end of the lower template 6;

[0031] The lower template 6 is fixed by a plurality of positioning holes 9, so that the workbench 1 can fix lower templates 6 of different sizes;

[0032] In a further preferred embodiment of the present invention, Figure 6-Figure 7As shown, the coating structure is provided with a rack 22, a gear 23 is meshed on the outer side of the rack 22, and both sides of the gear 23 are rotatably connected to the limit plate 24, and the limit plate 24 is fixedly connected to the recovery roller 25, and the two ends of the recovery roller 25 are respectively rotatably connected to the fixed blocks 26, and the outer side of the recovery roller 25 is rotatably connected to the protective film 27, and the end of the protective film 27 away from the recovery roller 25 is rotatably connected to the storage roller 28, and both ends of the storage roller 28 are rotatably connected to the fixed blocks 26, and a plurality of fixed blocks 26 are fixedly connected to both sides of the upper template 5, a slot 29 is provided inside the gear 23, and the slot 29 is internally engaged with the limit block 30, and the limit block 30 is rotatably connected to both sides of the recovery roller 25, and an elastic rotating shaft is provided at the connection between the limit block 30 and the recovery roller 25;

[0033] When the upper template 5 moves upward, the upper template 5 will drive the limit plate 24 to move upward. Since the gear 23 and the rack 22 are meshed with each other, the gear 23 drives the recovery roller 25 to rotate. When the recovery roller 25 rotates, the protective film 27 is rolled up to the outside of the recovery roller 25. When the upper template 5 moves downward, the upper template 5 will drive the limit plate 24 to move downward. Through the setting of the limit block 30, the limit block 30 rotates on the outside of the recovery roller 25, so that the limit block 30 slides inside the slot 29, so that the gear 23 cannot drive the recovery roller 25. Through the ratchet structure formed between the limit block 30 and the slot 29, the gear 23 can only drive the recovery roller 25 to rotate in one direction, thereby realizing the automatic recycling process of the protective film 27.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydraulic press for plate stretching processing, comprising a workbench (1), a support column (2) and an upper crossbeam (3), wherein the four corners of the top of the workbench (1) are fixedly connected to the support columns (2), the upper crossbeam (3) is located on the top of a plurality of support columns (2), and the plurality of support columns (2) are distributed at the four corners of the bottom of the upper crossbeam (3); Features: A hydraulic rod (4) is fixedly connected to the interior of the upper cross beam (3), and the hydraulic rod (4) passes through the interior of the upper cross beam (3); an upper template (5) is fixedly connected to the lower end of the hydraulic rod (4), and four corners of the upper template (5) are provided with openings, and the openings are slidably connected to the outside of the support column (2); a lower template (6) is slidably connected to the top of the workbench (1), and the top of the lower template (6) and the interior of the upper template (5) are mutually matched; a water spray structure is provided inside the workbench (1), and the water spray structure is provided with a storage rod (10); a sliding tube (11) is slidably connected to the interior of the storage rod (10), and a spring A (12) is provided on the outside of the sliding tube (11); a guide tube (13) is provided inside the spring A (12), and the guide tube (13) is slidably connected to the interior of the sliding tube (11), and the guide tube (13) is slidably connected to the interior of the sliding tube (11), and the guide tube (1 3) A connecting valve (14) is provided at the lower end, a limiting groove (15) is provided at the top of the sliding tube (11), and a guide block (16) is slidably connected inside the limiting groove (15), and a guide hole (17) is provided inside the guide block (16), a sealing tube (18) is fixedly connected at the bottom of the guide block (16), and a spring B (19) is provided on the outside of the sealing tube (18), and the spring B (19) is located between the sliding tube (11) and the outside of the sealing tube (18), and the spring B (19) is slidably connected to the inside of the sliding tube (11), a spray port (20) is provided on one side of the top of the sliding tube (11), and the inside of the spray port (20) is communicated with the inside of the guide hole (17), a lower pressure rod (21) is slidably connected inside the limiting groove (15), and the lower pressure rod (21) is located at the top of the guide block (16); A coating structure for protecting the lower template (6) is provided on one side of the workbench (1).

2. A hydraulic press for plate drawing according to claim 1, characterized in that: The workbench (1) is provided with a mounting hole (7) inside, and the mounting holes (7) are provided with a plurality of centrally symmetrically distributed inside the sliding tube (11), and the bottoms of the plurality of mounting holes (7) are all provided with fixing holes (8).

3. A hydraulic press for plate drawing according to claim 2, characterized in that: The interior of the installation hole (7) and the interior of the fixing hole (8) are fixedly connected to the storage rod (10) and the connecting valve (14) respectively.

4. A hydraulic press for plate drawing according to claim 3, characterized in that: The workbench (1) is provided with a plurality of positioning holes (9) inside, and the plurality of positioning holes (9) are evenly distributed inside the workbench (1), and the inside of the positioning holes (9) is slidably connected to the lower end of the lower template (6).

5. The hydraulic press for plate drawing according to claim 1, characterized in that: The laminating structure is provided with a rack (22), the outer side of the rack (22) is meshed with a gear (23), both sides of the gear (23) are rotatably connected to a limit plate (24), and the interior of the limit plate (24) is fixedly connected to a recovery roller (25).

6. A hydraulic press for plate drawing according to claim 5, characterized in that: The two ends of the recovery roller (25) are rotatably connected to fixed blocks (26), and the outer side of the recovery roller (25) is rotatably connected to a protective film (27), and the end of the protective film (27) away from the recovery roller (25) is rotatably connected to a storage roller (28).

7. A hydraulic press for plate drawing according to claim 6, characterized in that: Both ends of the storage roller (28) are rotatably connected to the fixed blocks (26), and a plurality of fixed blocks (26) are fixedly connected to both sides of the upper template (5). A slot (29) is provided inside the gear (23), and a limit block (30) is engaged and connected inside the slot (29), and the limit block (30) is rotatably connected to both sides of the recovery roller (25). At the same time, an elastic rotating shaft is provided at the connection between the limit block (30) and the recovery roller (25).

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